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Title: Flotation of hydrophobic flocculated coal for ash rejection

Abstract

In order to remove much more ash from the coal slurry of Tongshan coal washing plant and obtain high quality clean coal, the flotation of hydrophobic flocculated coal is studied to replace the conventional flotation.The main parameters of affecting this process such as the duration and intensity of the agitation, the amount and type of dispersant and nonpolar oil are investigated. The new process has been used to treat the coal slurry of 24.22% ash content, and the cleaned coal of 12.52% ash content with 86.58% weight recovery was obtained, compared to that of 17.78% ash content with 86.01% weight recovery by the conventional flotation. It is obvious that the flotation of hydrophobic flocculated coal is an efficient method to coal slurry beneficiation.

Authors:
; ; ;  [1]
  1. Univ. of Science and Technology, Beijing (China). Coll. of Resources Engineering
Publication Date:
OSTI Identifier:
257162
Report Number(s):
CONF-950952-
TRN: IM9631%%368
Resource Type:
Book
Resource Relation:
Conference: 12. annual international Pittsburgh coal conference, Pittsburgh, PA (United States), 11-15 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Twelfth annual international Pittsburgh coal conference: Proceedings. Coal -- Energy and the environment; PB: 1248 p.
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; COAL; FLOTATION; DEASHING; AGGLOMERATION; COAL PREPARATION; OILS; PARTICLE SIZE; KEROSENE; SURFACTANTS; EXPERIMENTAL DATA; MIXING; CALORIFIC VALUE; MATERIALS RECOVERY; EFFICIENCY

Citation Formats

Li, R, Xu, Y, Song, S, and Lu, S. Flotation of hydrophobic flocculated coal for ash rejection. United States: N. p., 1995. Web.
Li, R, Xu, Y, Song, S, & Lu, S. Flotation of hydrophobic flocculated coal for ash rejection. United States.
Li, R, Xu, Y, Song, S, and Lu, S. Sun . "Flotation of hydrophobic flocculated coal for ash rejection". United States.
@article{osti_257162,
title = {Flotation of hydrophobic flocculated coal for ash rejection},
author = {Li, R and Xu, Y and Song, S and Lu, S},
abstractNote = {In order to remove much more ash from the coal slurry of Tongshan coal washing plant and obtain high quality clean coal, the flotation of hydrophobic flocculated coal is studied to replace the conventional flotation.The main parameters of affecting this process such as the duration and intensity of the agitation, the amount and type of dispersant and nonpolar oil are investigated. The new process has been used to treat the coal slurry of 24.22% ash content, and the cleaned coal of 12.52% ash content with 86.58% weight recovery was obtained, compared to that of 17.78% ash content with 86.01% weight recovery by the conventional flotation. It is obvious that the flotation of hydrophobic flocculated coal is an efficient method to coal slurry beneficiation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}

Book:
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